{"id":"OSV-2021-651","aliases":[],"status":"published","title":"Heap-use-after-free in zend_gc_delref","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33335\n\n```\nCrash type: Heap-use-after-free READ 4\nCrash state:\nzend_gc_delref\nzval_delref_p\nzval_ptr_dtor_nogc\n```","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2021-04-18T00:00:25.691271Z","modified":"2022-04-13T03:04:33Z","affected":[{"source":"osv","ecosystem":"OSS-Fuzz","package":"php","ranges":[{"type":"GIT","events":[{"introduced":"0fdf668dce21a2bdab5f0d76b3b8dc3879e661fd"},{"fixed":"08dafda1232ffb70d878cb9b334982163aa32357"}]}]}],"references":[{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33335","tags":["report"]}],"sources":{"osv":[{"id":"OSV-2021-651","title":"Heap-use-after-free in zend_gc_delref","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33335\n\n```\nCrash type: Heap-use-after-free READ 4\nCrash state:\nzend_gc_delref\nzval_delref_p\nzval_ptr_dtor_nogc\n```\n","status":"published","published":"2021-04-18T00:00:25.691271Z","modified":"2022-04-13T03:04:33.417391Z","updated_at":"2026-11-02T15:52:49.04248Z"}]}}